(19)

(11)

EP 0 965 079 A2

(12)

(43) Date of publication: 22.12.1999 Bulletin 1999/51 (21) Application number: 98905579.0 (22) Date of filing: 16.03.1998

(51) International Patent Classification (IPC):  G06F 3/ 038( . ) G06F 3/ 033( . ) G06F 3/ 023( . ) G06F 3/ 048( . ) (86) International application number: PCT/IB1998/000364 (87) International publication number: WO 1998/044406 (08.10.1998 Gazette 1998/40)

(84) Designated Contracting States: DE FR GB (30) Priority: 02.04.1997 GB 19970006711 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: VAN DER HAAR, Robert, Alexander NL-5656 AA Eindhoven (NL) EVERETT, Timothy, John NL-5656 AA Eindhoven (NL) (74) Representative: White, Andrew Gordon  Philips Electronics UK Limited, Patents and Trade Marks Department, Cross Oak Lane Redhill, Surrey RH1 5HA Redhill, Surrey RH1 5HA (GB)